20952109920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{890821}}^1$

素因数の和:890853

約数の個数: 144

約数和(自身を含む): 76774603248

約数和(自身を除く): 55822493328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 23520, 890821, 1781642, 2672463, 3563284, 4454105, 5344926, 6235747, 7126568, 8908210, 10689852, 12471494, 13362315, 14253136, 17816420, 18707241, 21379704, 24942988, 26724630, 28506272, 31178735, 35632840, 37414482, 42759408, 43650229, 49885976, 53449260, 62357470, 71265680, 74828964, 85518816, 87300458, 93536205, 99771952, 106898520, 124714940, 130950687, 142531360, 149657928, 174600916, 187072410, 199543904, 213797040, 218251145, 249429880, 261901374, 299315856, 349201832, 374144820, 427594080, 436502290, 498859760, 523802748, 598631712, 654753435, 698403664, 748289640, 873004580, 997719520, 1047605496, 1309506870, 1396807328, 1496579280, 1746009160, 2095210992, 2619013740, 2993158560, 3492018320, 4190421984, 5238027480, 6984036640, 10476054960, 20952109920]

約数ペア:

[(1, 20952109920), (2, 10476054960), (3, 6984036640), (4, 5238027480), (5, 4190421984), (6, 3492018320), (7, 2993158560), (8, 2619013740), (10, 2095210992), (12, 1746009160), (14, 1496579280), (15, 1396807328), (16, 1309506870), (20, 1047605496), (21, 997719520), (24, 873004580), (28, 748289640), (30, 698403664), (32, 654753435), (35, 598631712), (40, 523802748), (42, 498859760), (48, 436502290), (49, 427594080), (56, 374144820), (60, 349201832), (70, 299315856), (80, 261901374), (84, 249429880), (96, 218251145), (98, 213797040), (105, 199543904), (112, 187072410), (120, 174600916), (140, 149657928), (147, 142531360), (160, 130950687), (168, 124714940), (196, 106898520), (210, 99771952), (224, 93536205), (240, 87300458), (245, 85518816), (280, 74828964), (294, 71265680), (336, 62357470), (392, 53449260), (420, 49885976), (480, 43650229), (490, 42759408), (560, 37414482), (588, 35632840), (672, 31178735), (735, 28506272), (784, 26724630), (840, 24942988), (980, 21379704), (1120, 18707241), (1176, 17816420), (1470, 14253136), (1568, 13362315), (1680, 12471494), (1960, 10689852), (2352, 8908210), (2940, 7126568), (3360, 6235747), (3920, 5344926), (4704, 4454105), (5880, 3563284), (7840, 2672463), (11760, 1781642), (23520, 890821)]